Construct validity of dichotomous and polychotomous choice contingent valuation questions

John C. Whitehead, Glenn C. Blomquist, Richard C. Ready, Ju Chin Huang

Research output: Contribution to journalArticlepeer-review

23 Scopus citations


In this note we conduct construct validity tests for dichotomous choice (DC) and polychotomous choice (PC) contingent valuation questions. Contrary to previous results, we find that DC and PC estimates of willingness to pay are theoretically valid, convergent valid, and similar in terms of statistical precision. Similar to previous results, PC respondents are less sensitive to information than DC respondents. We conclude that DC and PC valuation questions are construct valid for this study. Sequential PC valuation questions could be used in studies where obtaining information about the certainty or intensity of respondent preferences would be useful.

Original languageEnglish (US)
Pages (from-to)107-116
Number of pages10
JournalEnvironmental and Resource Economics
Issue number1
StatePublished - Jan 1998

All Science Journal Classification (ASJC) codes

  • Economics and Econometrics
  • Management, Monitoring, Policy and Law


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